Mighty Max ML9-12GEL 12V 9AH GEL F2 Replacement Battery for APC UPS BK500 — 2 Pack

ML9-12GEL is a rechargeable, maintenance-free 12V 9AH GEL battery sold as a Pack of 2. Designed with an F2 terminal, these Mighty Max batteries are a direct replacement option for APC UPS BK500 units. Reliable long-term power: GEL construction gives these batteries a slower self-discharge rate than AGM types, so they hold charge longer when idle — an ideal upgrade for extended standby readiness. Built for extreme temperatures: Formulated to deliver consistent output across a wide climate range, the ML9-12GEL maintains dependable performance in both hot and cold conditions. Rugged, safe design: The cells use a thick, non-spillable gel paste that minimizes leak risk and reduces the chance of acid spills and harmful fumes. That gel construction also improves resistance to vibration and shock for use in demanding applications. Trusted quality: Mighty Max has a reputation for dependable batteries; this GEL model offers superior discharge characteristics, enhanced safety, improved performance, and a longer service life.